0.50 - 4.00 CARAT 14K SOLID YELLOW GOLD BLUE SAPPHIRE ROUND STUD Push Back Earrings. 0.50CTW - 4.00CTW. The item "14K SOLID YELLOW GOLD BLUE SAPPHIRE ROUND CUT STUD PUSH BACK EARRINGS All Sizes" is in sale since Thursday, May 8, 2014. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Earrings\Gemstone". The seller is "limor_jewelers" and is located in Brooklyn, New York.This item can be shipped worldwide.